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iio: Use kmalloc_array() in iio_scan_mask_set() 

commit 057ac1acdfc4743f066fcefe359385cad00549eb upstream.

A multiplication for the size determination of a memory allocation
indicated that an array data structure should be processed.
Thus use the corresponding function "kmalloc_array".

This issue was detected by using the Coccinelle software.

Change-Id: I56a1fb8b1124230dcc53d0100fe2eef31952a789
Signed-off-by: Markus Elfring <elfring@users.sourceforge.net>
Signed-off-by: Jonathan Cameron <jic23@kernel.org>
Signed-off-by: Ben Hutchings <ben@decadent.org.uk>
This commit is contained in:
Markus Elfring 2016-09-23 22:30:32 +02:00 committed by L R
parent b0c3365842
commit 8fb10e5eef
1 changed files with 3 additions and 4 deletions
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7
drivers/iio/industrialio-buffer.c
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@ -719,10 +719,9 @@ int iio_scan_mask_set(struct iio_dev *indio_dev,
const unsigned long *mask;
unsigned long *trialmask;
trialmask = kmalloc(sizeof(*trialmask)*
BITS_TO_LONGS(indio_dev->masklength),
GFP_KERNEL);
trialmask = kmalloc_array(BITS_TO_LONGS(indio_dev->masklength),
sizeof(*trialmask),
GFP_KERNEL);
if (trialmask == NULL)
return -ENOMEM;
if (!indio_dev->masklength) {